Publication Type Journal Article
Title Syntheses, Structures and Magnetic Properties of Heterobridged Dinuclear and Cubane-Type Tetranuclear Complexes of Nickel(II) Derived from a Schiff Base Ligand
Authors Susanta Hazra Rajesh Koner Pascale Lemoine E. Carolina Sanudo Sasankasekhar Mohanta
Groups
Journal EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Year 2009
Month August
Volume
Number 23
Pages 3458-3466
Abstract Syntheses, structures and magnetic properties of a hetero-bridged mu-phenoxido-mu(1,1)-NCO dinickel(II) compound [Ni-2(II)-(HL)(3)(mu-NCO)]center dot 2H(2)O (1) and a heterobridged bis(mu(3)-phenoxido)bis(mu(3)-alkoxido)tetranickel(II) system, [Ni-4(II)(L)(2)(HL)(2)-(SeCN)(2)(H2O)(2)]center dot C3H7NO center dot 4H2O (2), containing a cubane-type (Ni4O4)-O-II core, derived from the tetradentate Schiff base compartmental ligand N-(2-hydroxyethyl)-3-methoxysalicylaldimine (H2L) were described. Compounds 1 and 2 crystalhze in triclinic P (1) over bar and monoclinic P2(1)/c systems, respectively. Compound 2, in which the Ni4O4 cubane core is composed of two mu(3)-phenoxido and two mu(3)-alkoxido moieties, represents the sole example of this type. The variable-temperature (2-300 K) magnetic susceptibilities and magnetizations of these two compounds were measured. The interaction between the metal centres in dinuclear compound 1 is weak ferromagnetic, resulting in an S-T = 2 ground state at 2 K. The overall interaction observed in 2 is weak ferromagnetic, leading to an unusual ST = 3 ground state. ((C) Wiley-VCH Verlag GmbH \& Co. KGaA, 69451 Weinheim, Germany, 2009)
DOI http://dx.doi.org/10.1002/ejic.200900353
ISBN
Publisher
Book Title
ISSN 1434-1948
EISSN 1099-0682
Conference Name
Bibtex ID ISI:000269224800010
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